Technology is in the development process!
Detonation engine More simpler and cheaper in the manufacture, an order of magnitude more powerful and more economical than a conventional jet engine, compared to it has a higher efficiency.
Description:
The detonation engine (pulse, pulsating engine) is replaced by a conventional jet engine. To understand the essence of the detonation engine, it is necessary to disassemble the usual jet engine.
The usual jet engine is arranged as follows.
In the combustion chamber, fuel and oxidizing agent occurs, the oxygen from the air performs. In this case, the pressure in the combustion chamber is constantly. The combustion process sharply increases the temperature, creates a constant fiery front and a constant reactive traction expiring from the nozzle. The front of the usual flame is distributed in a gas environment at a speed of 60-100 m / s. Due to this and moves aircraft . However, modern jet engines have reached a certain limit of efficiency, power and other characteristics, the increase of which is almost impossible or extremely difficult.
In the detonation (pulse or pulsating) engine combustion occurs by detonation. Detonation is a combustion process, but which occurs hundreds of times faster than with the usual fuel burning. With detonation combustion, a detonation shock wave is formed, carrying with supersonic speeds. It is about 2500 m / s. The pressure as a result of detonation combustion increases rapidly, and the volume of the combustion chamber remains unchanged. Combustion products are pulled out with a huge speed through nozzle. The frequency of pulsations of the detonation wave reaches several thousand per second. In the detonation wave there is no stabilization of the front of the flame, on each ripple is updated fuel mixture And the wave starts again.
The pressure in the detonation engine is created due to the detonation itself, which eliminates the supply of the fuel mixture and the oxidant at high pressure. In a conventional jet engine to create a pressure of 200 atm., It is necessary to supply the fuel mixture under a pressure of 500 atm. While in the detonation motor - the fuel mixture pressure is 10 atm.
The detonation engine combustion chamber structurally has an annular shape with nozzles placed by its radius for fuel supply. The detonation wave runs around the circumference again and again, the fuel mixture is compressed and burns out, pushing the combustion products through the nozzle.
Benefits:
- The detonation engine is simpler in the manufacture. There is no need to use turbocharging units,
– The order is more powerful and more economical than the usual reactive engine,
- has a higher efficiency,
– cheaper in manufacturing,
- there is no need to create a high pressure supply of fuel mixture and oxidizing agent, high pressure is created due to the detonation itself,
– The detonation engine is superior to a conventional jet engine 10 times by power removed from the volume unit, which leads to a decrease in the design of the detonation engine,
- detonation combustion 100 times faster than the usual burning of fuel.
Note: © photo https://www.pexels.com, https://pixabay.com
So far, all progressive humanity from NATO countries is preparing to start testing a detonation engine (tests can happen in 2019 (and rather later)), in backward Russia, announced the completion of the tests of such an engine.
They declared completely calmly and no one scare. But in the West, expected was frightened and began their hysterical howl - we will leave for the rest of my life. Work on the detonation engine (DD) is conducted in the USA, Germany, France and China. In general, there is reason to believe that the problem of the problem is interested in Iraq and North Korea - a very promising work, which actually means new stage In rocket lights. And in general in the engine.
The idea of \u200b\u200bthe detonation engine was first announced in 1940 by the Soviet physicist Ya.B. Zeldovich. And the creation of such an engine promised huge benefits. For a rocket engine, for example:
- 10,000 times the power increases compared to the usual EDD. IN this case We are talking about the power obtained from the unit of the engine volume;
- 10 times less fuel per unit of power;
- DD is simply substantial (at times) cheaper than standard EDD.
Liquid rocket engine is such a big and very expensive burner. And expensive because to maintain sustainable burning, a large number of mechanical, hydraulic, electronic and other mechanisms is required. Very complicated production. So complicated that the United States has not been able to create their own EDD and are forced to buy RD-180 in Russia.
Russia very soon will receive a serial reliable inexpensive lightweight rocket engine. With all the ensuing consequences:
the rocket can be carried at times more than the payload - the engine itself weighs significantly less, the fuel is 10 times less than the declared range of flight. And you can increase this range 10 times to increase;
the cost of the rocket is reduced to multiple. This is a good answer for lovers to organize a weapon race with Russia.
And there is long-range space ... Opened just fantastic prospects for its development.
However, the Americans are right and now not to space - there are already preparing packages of sanctions so that the detonation engine in Russia does not happen. To interfere with all his might - painfully a serious application for leadership was made by our scientists.
07 Feb 2018. Tags: 2479Discussion: 3 comments
* 10,000 times the power increases compared to the usual EDD. In this case, we are talking about the power obtained from the unit of the engine volume;
10 times less fuel per unit of power;
—————
Somehow does not fit with other publications:
"Depending on the design, it may exceed the original EDD FRD from 23-27% for a typical design with an expanding nozzle, up to 36-37% of the increase in the FRD (wicked rocket engines)
They are able to change the pressure of the expiring gas jet depending on the atmospheric pressure, and save up to 8-12% of fuel on the entire construction site (the main savings occurs at low heights, where it comes to 25-30%). "
In fact, instead of a constant frontal flame in the combustion zone, a detonation wave is formed, carrying with supersonic speeds. In such a wave of compression, the fuel and oxidizer are detonated, this process, in terms of thermodynamics increases Efficiency engine An order of magnitude, thanks to the compactness of the combustion zone.
Interestingly, in 1940, Soviet physicist Ya.B. Zeldovich proposed the idea of \u200b\u200ba detonation engine in the article "On the energy use of detonation combustion". Since then, many scientists have worked on a promising idea different countriesThe United States, then, Germany, then our compatriots were published.
In the summer, in August 2016, Russian scientists managed to create a full-size liquid jet engine for the first time in the world, operating on the principle of detonation combustion of fuel. Our country finally has established world priority in mastering the latest technology.
What is so good new engine? In the reactive motor, the energy is used, isolated when burning the mixture at a constant pressure and a constant flame front. A gas mixture of fuel and oxidant with combustion sharply increases the temperature and column of a flame that breaks out of the nozzle creates a reactive traction.
With detonation combustion, the reaction products do not have time to collapse, because this process is 100 times faster than deflating and pressure at the same time increases rapidly, and the volume remains unchanged. The allocation of such a large amount of energy can really destroy the car engine, so such a process is often associated with an explosion.
In fact, instead of a constant frontal flame in the combustion zone, a detonation wave is formed, carrying with supersonic speeds. In such a compression wave, the fuel and oxidizer are detonated, this process, from the point of view of thermodynamics, increases the efficiency of the engine by an order of magnitude, thanks to the compactness of the combustion zone. Therefore, experts are so zealo and have begun to develop this idea. In the usual EDR, in fact, which is a large burner, the main thing is not the camera of combustion and nozzle, but the fuel pumping unit (TNA), which creates such pressure so that the fuel penetrates into the chamber. For example, in the Russian EDRD RD-170 for the energy carrier missiles, the pressure in the combustion chamber of 250 atm and the pump that the oxidizer in the combustion zone has to create a pressure of 600 atm.
In the detonation engine, the pressure is created by the detonation itself, representing a running compression wave in a fuel mixture, in which pressure without any TNA is already 20 times more and turbocharging units are superfluous. In order to be clear, the American "shuttle" pressure in the combustion chamber 200 atm, and the detonation engine in such conditions it is necessary only 10 atm for supplying a mixture - it is like a bicycle pump and Sayano-Shushenskaya HPP.
The engine based on detonation in this case is not only simpler and cheap to the whole order, but much more powerful and more economical than the usual EDD. On the path of implementation of the Detonation Engine project, the problem of concomposition with a wave of detonation. This phenomenon is not easy to explosive wave, which has the speed of sound, and the detonation, spreading at a speed of 2500 m / s, there is no stabilization of the flame front, the mixture and the wave is updated for each ripple again.
Previously, Russian and French engineers developed and built jet pulsating engines, but not on the principle of detonation, but on the basis of the ripple of ordinary burning. Characteristics of such PUVDs were low and when the engine engineers developed pumps, turbines and compressors, the age of jet engines and EDD, and pulsating remained on the side of progress. The bright heads of science tried to combine detonation combustion with PUVD, but the frequency of ripples of the usual burning front is no more than 250 per second, and the detonation front has a speed of up to 2500 m / s and the frequency of its ripples reaches several thousand per second. It seemed impossible to embody in practice such a speed of renewal of the mixture and at the same time initiate detonation.
In the SSRC, it was possible to build such a detonation pulsating engine and test it in the air, however, it worked only 10 seconds, but the priority remained behind the American designers. But already in the 60s of the last century, the Soviet scientist B.V. Wojjtzkhovsky and almost at the same time and the American from the university in Michigan J. Nicholas came the idea to begged in the combustion chamber by the wave of detonation.
Such a rotary engine consisted of a ring combustion chamber with nozzles placed on its radius for fuel supply. The detonation wave runs as a protein in the wheel in the circumference, the fuel mixture is compressed and burns out, pushing the combustion products through the nozzle. In the spin engine we obtain the frequency of rotation of the wave several thousand per second, its work is similar to the workflow in the FDMS, only more efficiently, due to the detonation of the fuel mixture.
In the USSR and the United States, and later in Russia, work is underway to create a rotary detonation engine with an unlucky wave, an understanding of the processes occurring inside, for which a whole science of physico-chemical kinetics was created. To calculate the conditions of the unsuccessful wave, we needed powerful computers that created only recently.
In Russia, many NII and KB are working on the project of such a spin engine, among which the engineering company of the Space Industry of NGO Energomash. For aid to develop such an engine, a fund of promising research came, because financing from the Ministry of Defense cannot be achieved - they only submit a guaranteed result.
Nevertheless, on the tests in Khimki at Energomash, the established continuous spin detonation regime was recorded - 8 thousand revolutions per second at the oxygen - kerosene mixture. In this case, detonation waves bated vibration waves, and heat coatings withstood high temperatures.
But it is not worth sharing, because this is only a demonstrator engine, which has worked very short time and the characteristics of it still says nothing. But the main thing is that the possibility of creating detonation burning is proved and a full-size spin engine is created in Russia, which will remain in the history of science forever.
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Silent Hill
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Mirrors
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Refuge
Kara Harding the death of her husband alone raises her daughter. The woman went on the footsteps of the Father and became a famous psychiatrist. She studies people with a split personality. Among them are those who claim that these personalities are much more. According to Kara, it is only the cover of serial killers, so all of her patients go to the death penalty. But one day, his father shows the daughter's case of Adam's Patient Patient, who is not amenable to any rational explanations. Kara continues to insist on his theory and even trying to cure Adam, but over time she opens up completely unexpected facts ...
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In fact, instead of a constant frontal flame in the combustion zone, a detonation wave is formed, carrying with supersonic speeds. In such a compression wave, the fuel and oxidizer are detonated, this process, from the point of view of thermodynamics, increases the efficiency of the engine by an order of magnitude, thanks to the compactness of the combustion zone.
Interestingly, in 1940, Soviet physicist Ya.B. Zeldovich proposed the idea of \u200b\u200ba detonation engine in the article "On the energy use of detonation combustion". Since then, many scientists from different countries worked on a promising idea, then the United States, then, Germany, are our compatriots.
In the summer, in August 2016, Russian scientists managed to create a full-size liquid jet engine for the first time in the world, operating on the principle of detonation combustion of fuel. Our country finally has established world priority in mastering the latest technology.
What is so good a new engine? In the reactive motor, the energy is used, isolated when burning the mixture at a constant pressure and a constant flame front. A gas mixture of fuel and oxidant with combustion sharply increases the temperature and column of a flame that breaks out of the nozzle creates a reactive traction.
Detonation engine / photo: sdelanounas.ru
With detonation combustion, the reaction products do not have time to collapse, because this process is 100 times faster than deflating and pressure at the same time increases rapidly, and the volume remains unchanged. The allocation of such a large amount of energy can really destroy the car engine, so such a process is often associated with an explosion.
In fact, instead of a constant frontal flame in the combustion zone, a detonation wave is formed, carrying with supersonic speeds. In such a compression wave, the fuel and oxidizer are detonated, this process, from the point of view of thermodynamics, increases the efficiency of the engine by an order of magnitude, thanks to the compactness of the combustion zone. Therefore, experts are so zealo and have begun to develop this idea. In the usual EDR, in fact, which is a large burner, the main thing is not the camera of combustion and nozzle, but the fuel pumping unit (TNA), which creates such pressure so that the fuel penetrates into the chamber. For example, in the Russian EDRD RD-170 for the energy carrier missiles, the pressure in the combustion chamber of 250 atm and the pump that the oxidizer in the combustion zone has to create a pressure of 600 atm.
In the detonation engine, the pressure is created by the detonation itself, representing a running compression wave in a fuel mixture, in which pressure without any TNA is already 20 times more and turbocharging units are superfluous. In order to be clear, the American "shuttle" pressure in the combustion chamber 200 atm, and the detonation engine in such conditions it is necessary only 10 atm for supplying a mixture - it is like a bicycle pump and Sayano-Shushenskaya HPP.
The engine based on detonation in this case is not only simpler and cheap to the whole order, but much more powerful and more economical than the usual EDD. On the path of implementation of the Detonation Engine project, the problem of concomposition with a wave of detonation. This phenomenon is not easy to explosive wave, which has the speed of sound, and the detonation, spreading at a speed of 2500 m / s, there is no stabilization of the flame front, the mixture and the wave is updated for each ripple again.
Previously, Russian and French engineers developed and built jet pulsating engines, but not on the principle of detonation, but on the basis of the ripple of ordinary burning. Characteristics of such PUVDs were low and when the engine engineers developed pumps, turbines and compressors, the age of jet engines and EDD, and pulsating remained on the side of progress. The bright heads of science tried to combine detonation combustion with PUVD, but the frequency of ripples of the usual burning front is no more than 250 per second, and the detonation front has a speed of up to 2500 m / s and the frequency of its ripples reaches several thousand per second. It seemed impossible to embody in practice such a speed of renewal of the mixture and at the same time initiate detonation.
In the SSRC, it was possible to build such a detonation pulsating engine and test it in the air, however, it worked only 10 seconds, but the priority remained behind the American designers. But already in the 60s of the last century, the Soviet scientist B.V. Wojjtzkhovsky and almost at the same time and the American from the university in Michigan J. Nicholas came the idea to begged in the combustion chamber by the wave of detonation.
Image: Sdelanounas.ru.
How the detonation relocation works
Such a rotary engine consisted of a ring combustion chamber with nozzles placed on its radius for fuel supply. The detonation wave runs as a protein in the wheel in the circumference, the fuel mixture is compressed and burns out, pushing the combustion products through the nozzle. In the spin engine we obtain the frequency of rotation of the wave several thousand per second, its work is similar to the workflow in the FDMS, only more efficiently, due to the detonation of the fuel mixture.
In the USSR and the United States, and later in Russia, work is underway to create a rotary detonation engine with an unlucky wave, an understanding of the processes occurring inside, for which a whole science of physico-chemical kinetics was created. To calculate the conditions of the unsuccessful wave, we needed powerful computers that created only recently.
In Russia, many NII and KB are working on the project of such a spin engine, among which the engineering company of the Space Industry of NGO Energomash. For aid to develop such an engine, a fund of promising research came, because financing from the Ministry of Defense cannot be achieved - they only submit a guaranteed result.
Nevertheless, on the tests in Khimki at Energomash, the established continuous spin detonation regime was recorded - 8 thousand revolutions per second at the oxygen - kerosene mixture. In this case, detonation waves bated vibration waves, and heat coatings withstood high temperatures.
But it is not worth sharing, because this is only a demonstrator engine, which has worked very short time and the characteristics of it still says nothing. But the main thing is that the possibility of creating detonation burning is proved and a full-size spin engine is created in Russia, which will remain in the history of science forever.
